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Vulnerability DatabaseCVE-2022-0158
CVE-2022-0158:
NixOS vulnerability analysis and mitigation
Overview
Vim was found to be vulnerable to a Heap-based Buffer Overflow vulnerability, identified as CVE-2022-0158. The vulnerability was discovered in early 2022 and affected the compilegetenv() function in the Vim text editor (CVE Mitre, NVD).
Technical details
The vulnerability exists in the compilegetenv() function where a heap-based buffer overflow could occur when reading before the start of the line with "$" by itself. The issue was fixed in Vim version 8.2.4049 by modifying how error reporting is handled - specifically by removing the subtraction of one when reporting the error (GitHub Commit).
Impact
The vulnerability could potentially lead to denial of service or arbitrary code execution when processing maliciously crafted input (Debian Tracker, Ubuntu Security).
Mitigation and workarounds
The vulnerability was patched in Vim version 8.2.4049. Users are advised to upgrade to this version or later. Multiple distributions have released security updates including Fedora (vim-8.2.4068-1.fc34), Ubuntu, and Apple macOS (Fedora Update, Apple Security).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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